Read the question carefully and understand the question requirements

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Data structure exercises analysis: help you master knowledge more deeply
I am happy to answer data structure exercises for you!
In order to provide you with more accurate and targeted help, please provide the following information:
Specific exercise content: Please describe the  Email List question in detail, including the question requirements, given conditions and examples.
Your existing ideas: What ideas do you have for this question? What solutions have you tried?
Difficulties encountered: What problems did you encounter in the process of solving the problem?
In general, I will analyze from the following aspects:



Read the question carefully and understand the question requirements.
Find out the key information in the question, such as data range, special cases, etc.
Determine the type of problem, whether it is a sorting problem, a search problem, or a graph theory problem, etc.
Algorithm selection: Design test cases to verify the correctness of the code.
Analysis



If you ask me: "How to implement a stack in C language and implement stacking and popping operations?"
A stack is a last-in-first-out linear list. We can use arrays or linked lists to implement stacks.
Arrays implement stacks, using an array to store stack elements, and the top pointer points to the top of the stack.


The linked list implements the stack. Each node stores a data element and a pointer to the next node. The top pointer points to the top of the stack.
Push operation: insert a new element to the top of the stack.
Pop operation: delete the top element of the stack.